EP0949694A3 - Magnetoresistor with ordered double perovskite structure and method for production thereof - Google Patents

Magnetoresistor with ordered double perovskite structure and method for production thereof Download PDF

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Publication number
EP0949694A3
EP0949694A3 EP99302347A EP99302347A EP0949694A3 EP 0949694 A3 EP0949694 A3 EP 0949694A3 EP 99302347 A EP99302347 A EP 99302347A EP 99302347 A EP99302347 A EP 99302347A EP 0949694 A3 EP0949694 A3 EP 0949694A3
Authority
EP
European Patent Office
Prior art keywords
magnetoresistor
atoms
double perovskite
production
perovskite structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99302347A
Other languages
German (de)
French (fr)
Other versions
EP0949694B1 (en
EP0949694A2 (en
Inventor
Keiichiro c/o Mitsubishi Elec. Corp. Kobayashi
Yoshinori Nat. Inst. f. Adv. Interdis.Res Tokura
Tsuyoshi Nat. Inst. f. Adv. Interdis. Res Kimura
Yasuhide Nat. Inst. f. Adv. Interdis.Res Tomioka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
Mitsubishi Electric Corp
National Institute of Advanced Industrial Science and Technology AIST
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP10081284A external-priority patent/JP2981661B2/en
Priority claimed from JP10295810A external-priority patent/JP3010203B1/en
Application filed by Agency of Industrial Science and Technology, Mitsubishi Electric Corp, National Institute of Advanced Industrial Science and Technology AIST filed Critical Agency of Industrial Science and Technology
Publication of EP0949694A2 publication Critical patent/EP0949694A2/en
Publication of EP0949694A3 publication Critical patent/EP0949694A3/en
Application granted granted Critical
Publication of EP0949694B1 publication Critical patent/EP0949694B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y15/00—Nanotechnology for interacting, sensing or actuating, e.g. quantum dots as markers in protein assays or molecular motors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/40—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials of magnetic semiconductor materials, e.g. CdCr2S4
    • H01F1/401—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials of magnetic semiconductor materials, e.g. CdCr2S4 diluted
    • H01F1/407—Diluted non-magnetic ions in a magnetic cation-sublattice, e.g. perovskites, La1-x(Ba,Sr)xMnO3
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N50/00—Galvanomagnetic devices
    • H10N50/80—Constructional details
    • H10N50/85—Magnetic active materials

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Materials Engineering (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Power Engineering (AREA)
  • Compounds Of Iron (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Hall/Mr Elements (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

A magnetoresistor with an ordered double perovskite structure is an oxide crystal which has an ordered double perovskite crystal structure represented by the general formula of A2BB'O6, wherein A stands for Sr atoms, B for Fe atoms and B' for Mo or Re atoms and wherein the Fe atoms and the Mo or Re atoms are alternately arranged and which exhibits negative magnetoresistive characteristics.
EP99302347A 1998-03-27 1999-03-26 Use of magnetoresistor with ordered double perovskite structure and method for production thereof Expired - Lifetime EP0949694B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP8128498 1998-03-27
JP10081284A JP2981661B2 (en) 1998-03-27 1998-03-27 Double aligned perovskite structure magnetoresistive element
JP10295810A JP3010203B1 (en) 1998-10-16 1998-10-16 Double aligned perovskite structure magnetoresistive element and method of manufacturing the same
JP29581098 1998-10-16

Publications (3)

Publication Number Publication Date
EP0949694A2 EP0949694A2 (en) 1999-10-13
EP0949694A3 true EP0949694A3 (en) 2003-11-26
EP0949694B1 EP0949694B1 (en) 2008-01-09

Family

ID=26422317

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99302347A Expired - Lifetime EP0949694B1 (en) 1998-03-27 1999-03-26 Use of magnetoresistor with ordered double perovskite structure and method for production thereof

Country Status (4)

Country Link
US (1) US6137395A (en)
EP (1) EP0949694B1 (en)
AT (1) ATE383663T1 (en)
DE (1) DE69937921T2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001085218A (en) * 1999-09-17 2001-03-30 Sharp Corp Ferromagnetic metal oxide polycrystalline and its manufacture
WO2001033585A1 (en) * 1999-11-05 2001-05-10 Oxxel Oxide Electronics Technology, Inc. Synthesis and magnetoresistance test system using double-perovskite samples for preparation of a magnetoresistance device
DE102008009817A1 (en) * 2008-02-19 2009-08-27 Epcos Ag Composite material for temperature measurement, temperature sensor comprising the composite material and method for producing the composite material and the temperature sensor
CN112094104B (en) * 2020-09-23 2023-03-28 齐齐哈尔大学 Double perovskite type spintronics material and preparation method thereof
CN114042459B (en) * 2021-11-22 2024-01-05 合肥学院 Tree-like soft magnetic Sr 2 FeMoO 6 Preparation method of efficient visible light catalyst

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2165206A5 (en) * 1971-12-22 1973-08-03 Cii
JP3345072B2 (en) * 1993-02-09 2002-11-18 株式会社日立製作所 Magnetoresistive element and magnetic recording / reproducing device

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
HWANG H Y ET AL: "Spin-polarized intergrain tunneling in La/sub 2/3/Sr/sub 1/3/MnO/sub 3/", PHYSICAL REVIEW LETTERS, 2 SEPT. 1996, APS, USA, vol. 77, no. 10, pages 2041 - 2044, XP002255894, ISSN: 0031-9007 *
ITOH M ET AL: "Valency pair and properties of 1:1 ordered perovskite-type compounds Sr2MMoO6 (M = Mn,Fe,Co)", MATERIALS SCIENCE AND ENGINEERING B, ELSEVIER SEQUOIA, LAUSANNE, CH, vol. 41, no. 1, 1 October 1996 (1996-10-01), pages 55 - 58, XP004077876, ISSN: 0921-5107 *
KOBAYASHI K -I ET AL: "Room-temperature magnetoresistance in an oxide material with an ordered double-perovskite structure", NATURE, 15 OCT. 1998, MACMILLAN MAGAZINES, UK, vol. 395, no. 6703, pages 677 - 680, XP002255893, ISSN: 0028-0836 *

Also Published As

Publication number Publication date
DE69937921D1 (en) 2008-02-21
EP0949694B1 (en) 2008-01-09
ATE383663T1 (en) 2008-01-15
DE69937921T2 (en) 2009-01-02
US6137395A (en) 2000-10-24
EP0949694A2 (en) 1999-10-13

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